Title: PHP Fatal errors in server log
Last modified: January 31, 2025

---

# PHP Fatal errors in server log

 *  Resolved [Tim Burkart](https://wordpress.org/support/users/bigmoxy/)
 * (@bigmoxy)
 * [1 year, 4 months ago](https://wordpress.org/support/topic/php-fatal-errors-in-server-log/)
 * I am seeing these fatal errors in the PHP error log and do not understand why
   they are occurring. Can you please provide some context? All plugins, core files
   and themes are up to date.
 * [30-Jan-2025 11:41:23 UTC] PHP Fatal error: Uncaught Error: Undefined constant“
   ABSPATH” in /home/refres36/public_html/wp-includes/class-wp-http.php:11 Stack
   trace: #0 {main} thrown in /home/refres36/public_html/wp-includes/class-wp-http.
   php on line 11
 * [30-Jan-2025 11:41:51 UTC] PHP Fatal error: Uncaught Error: Class “WP_Dependencies”
   not found in /home/refres36/public_html/wp-includes/class-wp-scripts.php:18 Stack
   trace: #0 {main} thrown in /home/refres36/public_html/wp-includes/class-wp-scripts.
   php on line 18
 * [30-Jan-2025 11:41:56 UTC] PHP Fatal error: Uncaught Error: Class “WP_Dependencies”
   not found in /home/refres36/public_html/wp-includes/class-wp-styles.php:18 Stack
   trace: #0 {main} thrown in /home/refres36/public_html/wp-includes/class-wp-styles.
   php on line 18
 * [30-Jan-2025 11:43:09 UTC] PHP Fatal error: Uncaught Error: Call to undefined
   function get_the_block_template_html() in /home/refres36/public_html/wp-includes/
   template-canvas.php:12 Stack trace: #0 {main} thrown in /home/refres36/public_html/
   wp-includes/template-canvas.php on line 12
 * [30-Jan-2025 11:46:00 UTC] PHP Fatal error: Uncaught Error: Class “WP_Widget”
   not found in /home/refres36/public_html/wp-includes/widgets/class-wp-widget-block.
   php:17 Stack trace: #0 {main} thrown in /home/refres36/public_html/wp-includes/
   widgets/class-wp-widget-block.php on line 17

Viewing 1 replies (of 1 total)

 *  Moderator [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * (@bcworkz)
 * [1 year, 4 months ago](https://wordpress.org/support/topic/php-fatal-errors-in-server-log/#post-18278138)
 * Those errors all refer to not being able to find built-in, standard WP resources.
   This indicates that there is some code in your site that’s not properly initializing
   WP before attempting to utilize WP resources. Unfortunately those errors alone
   will not help isolate the root cause. One way to determine the root cause is 
   to obtain a debug backtrace to learn what the initial code was that led to these
   errors.
 * Another way would be to look at the timestamps and find a corresponding request
   in the server access log.
 * Yet another way would be to deactivate all plugins and switch to a default Twenty*
   theme. The errors should cease. Restore your theme and plugins, one at a time.
   Once errors occur again, the last activated module would be the cause. For this
   process to be effective, you should try to find some way to reliably induce one
   of the errors on demand.

Viewing 1 replies (of 1 total)

The topic ‘PHP Fatal errors in server log’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * Last activity: [1 year, 4 months ago](https://wordpress.org/support/topic/php-fatal-errors-in-server-log/#post-18278138)
 * Status: resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics